Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2013

Property, Plant and Equipment [Abstract]

Components of property, plant and equipment

Property and equipment are as follows (in thousands):



	March 31, 2013			December 31, 2012
Land	$	1,442		$	1,442
Buildings and leasehold improvements	19,263			18,520
Machinery, equipment and rental tools	54,869			54,279
Equipment in progress	10,909			9,382
Furniture and fixtures	1,354			1,358
Transportation equipment	5,479			5,136
Computer equipment and software	6,340			6,743
Property and equipment	99,656			96,860
Less accumulated depreciation	(42,498		)	(40,361		)
Property and equipment, net	$	57,158		$	56,499

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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